SparkFun
Raspberry Pi Radio Module 2 (RMC20452T)
· MPN: WRL-29424
This compact, certified wireless module is designed for integration into custom PCBs and microcontroller products. It combines the Infineon CYW43439 chipset ...
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This compact, certified wireless module is designed for integration into custom PCBs and microcontroller products. It combines the Infineon CYW43439 chipset with single-band 2.4 GHz Wi-Fi 4 (802.11n) and Bluetooth 5.2 Classic + LE, using a SISO architecture with integrated PA, LNA and a shared 2.4 GHz antenna.
Using a pre-certified radio module helps reduce RF design complexity and the number of external components needed for wireless connectivity. It is suited to OEM and embedded designs where Wi-Fi and Bluetooth need to be added without starting the radio design from scratch.
The module uses a low-pin-count gSPI host interface and provides three host-controlled GPIOs for extra I/O flexibility. It is supplied in a 21-pad castellated package for mounting to your own board and is compatible with the Raspberry Pi Pico SDK.
Features:
- Chipset: Infineon CYW43439 Wi-Fi + Bluetooth combo chipset
- Wi-Fi: Wi-Fi 4 (802.11n), 2.4 GHz band only, up to 96 Mbps PHY data rate
- Bluetooth: Bluetooth 5.2 (Classic + BLE), ~100 m range (Class 1), ~10 m range (Class 2)
- RF integration: Integrated PA, LNA, and shared 2.4 GHz antenna
- Host interface: low-pin-count gSPI
- Additional I/O: 3 host-controlled GPIOs
- Software compatibility: Raspberry Pi Pico SDK
- Certification: Full modular certifications (radio/regulatory)
- Production lifetime: Guaranteed production until at least January 2036
Specifications:
- Chipset: Infineon CYW43439 Wi-Fi + Bluetooth combo chipset
- Wi-Fi: Wi-Fi 4 (802.11n), 2.4 GHz band only, up to 96 Mbps PHY data rate
- Bluetooth: Bluetooth 5.2 (Classic + BLE), ~100 m range (Class 1), ~10 m range (Class 2)
- RF integration: Integrated PA, LNA, and shared 2.4 GHz antenna
- Host interface: low-pin-count gSPI
- Additional I/O: 3 host-controlled GPIOs
- Power consumption: Idle (PM1, DTIM1): ~1.19 mA
- Receive at –50 dBm: ~43 mA
- Transmit at 16 dBm: ~271 mA
- Operating voltage: supplied via host (typical 3.3 V I/O domain)
- Operating temperature range: –30 °C to +70 °C
- Package: 21-pad castellated module
- Dimensions: 16.5 mm × 14.5 mm × ~2.55 mm
- Software compatibility: Raspberry Pi Pico SDK
- Certifications: Full modular certifications (radio/regulatory)
- Guaranteed production: until at least January 2036
A practical module for product designers adding Raspberry Pi Pico SDK-compatible Wi-Fi and Bluetooth connectivity to embedded hardware.
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for low power use and broad compatibility with modern phones and computers. It connects well to battery-powered and mobile devices, including Apple hardware, though it behaves differently from Bluetooth Classic and its serial-style profiles.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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Raspberry Pi Radio Module 2 Datasheet
Datasheet · 3.1 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 530.8 KB · Click any page to view full size
